Package forming and filling apparatus



F. D. PALMER PACKAGE FORMING AND FILLING APPARATUS Jan. 26, 1943.

Filed July 31, 1939 18 Sheets-Sheet l Jan. 26, 1943. F. D. PALMER2,309,209

PACKAGE FORMING AND FILLING APPARATUS Filed July 31, 1939 18Sheets-Sheet 2 Jan. 26, 1943. F. D. PALMER PACKAGE FORMING AND FILLINGAPPARATUS Filed July 31, 1939 18 Sheets-Sheet 3 Jan. 26, 1943.

F. D. PALMER PACKAGE FV'ORMING AND FILLING APPARATUS Filed July 31, 193918 SheetsSheet 4 18 Sheets-Sheet 5 a o m F. D. PALMER Filed July 51,1939 PACKAGE FORMING AND FILLING APPARATUS Jan. 26, 1943.

Jan. 26, 1943. F. D. PALMER 2,309,209

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PACKAGE FORMING AND FILLING APPARATUS Filed July 31, 1939 18Sheets-Sheet l1 flan/6D. Pal/mar v? @2595 Jan. 26, 1943.

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manta? flank D Pal/mar Jan. 26, 1943. F. D. PALMER 2,309,209

PACKAGE FORMING AND FILLING APPARATUS Filed July 31, 1939 18Sheets-Sheet l3 IH K;

Jan. 26, 1943. F. D. PALMER PACKAGE FORMING AND FILLING APPARATUS FiledJuly 51, 1939 18 Sheets-Sheet l4 Jan. 26, 1943. F. D. PALMER PACKAGEFORMING AND FILLING APPARATUS Filed July 31, 1959 18 Sheets-Sheet l5Jan. 26, 1943. F. D. PALMER 2,309,209

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PACKAGE FORMING AND FILLING APPARATUS Filed July 51, 1959 18 SheetsSheet1a flan/ Z7. Pal/new Patented Jan. 26, 1943 PACKAGE FORMING APPARATUSsnpnnnmc Frank D. Palmer, Chicago, 111-, assignor to Kraft ClieeseCompany, a corporation of Delaware Application July 31, 1939, Serial N0.287,498

36 China. (CL 93-4) This invention relates to a method and apparatuswhich produces from blank sheet material a container, fills thecontainer, clom and seals the same, and then ejects the filled packagefrom the machine.

The main objects ofthe invention are to pro vide an improved method andapparatus for auto-- matically and continuously producing from blanksheet material, containers, and filling and closing the same rapidly andeconomically, so as to reduce to a minimum the cost of packaging of theproduct concerned; to produce such mechanism which will operatecontinuously with a minimum of attention from an operator; to producesuch an improved method and apparatus which-will occupy a minimum offloor space; to provide a method and apparatus. in the characterindicated which will produce a small sized but effectively sealedpackage, particularly but not exclusively adapted for the packaging ofpowdered, granular, or other similar materials which it is desired topreserve indefinitely in their original condition as to moisturecontent; and ingeneral it is the object of this invention to provide animproved packaging method and apparatus.

Other'obiects and advantages of the invention will be understood byreference to the following specifications and accompanying drawings (18sheets), wherein there is'disclosed a methcd and apparatus according toa selected form of the in vention.

In the drawings:

Figure 1 is a top plan view;

Figure 2' is a side elevation of a portion of the the mechanism shown inFigure 1;

Figures 3 and 4 are sections respectively on the lines I-Iand 4-4ofFigure l;

Figures 5, 6, and '7 are sections respectively on the lines 5-5, 6-8,and 1-1 of Figure 3;

Figure 8 is a section on the line 8-8 of Figuse 7;

Figure 9 is a section on the line 9-8 of Figure 7; but showing the partsin an advanced and changed position; A

Figure 10 is an enlargement of a part of Figure 9, but showing a changedposition of the parts;

Figure 11 is .a front elevation of a part of the mechanism shown inFigure 9. I

Figure 12 is a section similar to Figure 9,'but showing the parts in anadvanced and changed position;

Figure 13 is a section on the line 18-" of Figure 9,;

ure 13, but showing changed positions of the mechanism;

Figure 16 is a section on the line i8l6 of Figure 14;

Figure 17 is a section on the line l'i-I'i of Figure 13;

Figure 18 is a section on the line i8i8 of Figure 15;

Figure 19 is a section corresponding to a part of Figure 9, but on anenlarged scale and showing the parts in a changed position;

Figure 20 is a section similar to Figure 19, but showing a furtherchanged position;

Figure 21 is a section on the line 2l--2l of Figure 4;

Figure 22 is a diagrammatic plan section showing certain cam operatingmechanism;

Figures 23, 24, and 25 are perspectives of certain elements of themechanism;

Figure 26 is a diagrammatic plan section showing certain cam operatingmechanism;

Figure 27 is an electric circuit diagram;

Figure 28 is a section on the line 28-28 of Fig ure 9;

Figure 29 is an elevation of cam mechanism shown in Figure 28;

Figure 30 is a section on th Figure 28;

line 30-30 of Figure 31 is a section on the line v3l-3l of Figure 28;

Figures 32 and 33 are sections respectively 0 the lines 32-32 and 3333of Figure 9; g

Figure 34 is a perspective of an element of mechanism shown in Figure33;

Figure 35 is a section on the line 35-35 of Figure 8;

Figure 36 is a plan of a sheet of material from which containers are tobe formed and showin the initial preparation of the sheet;

Figures 37 to 42 inclusive are perspectives illustrating successivesteps in the formation and closing of the container.

' Referring now to the drawings and initially to Figures 1, 2, and 3thereof, the apparatus herein referred to comprises a frame structureconsisting of supporting legs such as indicated at 50, a lowerstationary spider or frame 5| and a central, upwardly extendingstationary tubular post 52. The lower frame member 5| is provided with alaterally extending part 53, which supports upwardly extending framemembers 54, which in turn support wrapper feeding mechanism. Supportsand 58 for supply rolls S of wrapper material are suitably mounted onupstanding Figures 14 and 15 are sections similar to Fig- 55 supportmgposts 5- .5- which are suitably inoun ted in conveniently accessibleparts of the frame. The two supply roll supporting devices are providedso that a reserve supplyroll may be rendy for feeding into 'themechanism immediately upon exhaustion of the other roll,

thereby to avoid the necessity of interrupting the operation of themachine for the purpose of replacing an exhausted supply roll of wrappermaterial. The wrapper material may be of any suitable type, for example,metal foil, Plioiilm, Paracote," or other materials which may be unite!to themselves by the application of heat or pressure or both, eitherbecause of their inherent nature or because of suitable coatings ofcementious material applied thereto.

The web T of such wrapper material is carried downwardly from either ofthe supply rolls thererf and threaded between upper and lower feed rolls58 and 58 respectively. The feed roll 58 is suitably journaled in framework of the apparatus and it is continuously driven by means of gearconnection as shown to a shaft 66 which v is connected by suitable meanssuch as chain and sprockets as shown to a shaft 6|. The shaft 6| iscontinuously driven by suitable connections such as sprockets and achain as shown to a shaft 62 which is in turn continuously driven bysimilar driving connections to a shaft 68 which may be representative ofany suitable source of power, for example, the output power shaft of anelectric motor driven speed reducing unit 64. An electric motor directlyconnected to the speed reducing unit is indicated at 65.

The upper feed roller 58 is journaled in suitable bearing blocks mountedfor vertical sliding movement and is normally urged downwardly by meansof a spring arrangement such as indicated in Figures 2 and 3. The roller58 is thus operative to press the web T iiito driving engagement withthe driven roller 58 so that rotation of the latter feeds the webforwardly. The web is carried forwardly between the feed rollers 58 and58 and is threaded between another pair of feed rollers 66 and 61 ofwhich the lower feed roller 61 is continuously driven by suitablesprocket and chain connections and as indicated to a shaft 68 which isin turn continuously driven by suitable chain and sprocket connectionsto a shaft 68. The shaft 68 is geared to the shaft J6 as best shown inFigure 3 so as to be thereby continuously driven. The upper roller 66 ismounted so as to be movable upwardly but is normally urged downwardlytowards the lower roller 61 by spring means as indicated in Figures 2and 3.

Between the said feed roller pairs, the web T is guided over an upwardlyhumped supporting plate 16 and a flat plate 1|, and between side guidessuch as indicated at 12. The web T issuing from between the feed rollers66 and 61 passes over a table bar 13, the free edge 1| of whichconstitutes one cutting member of :mechanism for shearing the web T intoseparate wrapper units hereinafter designed W".

The other cutting member of the shearing mechanism comprises a blade 15which is carried by a crosshead 16, the latter being vertically slidablymounted on upstanding posts 11-11 which are suitably supported on thebed plate 18 of the frame structure of the apparatus (see also Figure6). The crosshead 16 carries a holding member 18 which is suitablymounted in the crosshead for vertical movement relative thereto andwhich is normally urged downwardly by a suitable spring arrangement asindicated in Figure 3. The member 19 is adapted to hold the web T infixed position against the member 18 during thetime that the shearmembers 14 and 15 are co-operating to sever the web to form the separatewrapper sheets.

The crosshead 16 also carries an embossing or creasing die 86 which issuitably vertically slidably mounted on the crosshead or on extensionbrackets carried thereby, the said die being normally urged to movedownwardly relative to the crosshead by suitable spring means as bestshown in Figures 3 and 6. The plate 1| which is disposed immediatelybelow the creasing die 86 is provided with grooves or the like forcooperating with ridges or the like carried by the upper die member 86for effecting creasing of the web. During the shearing and embossing orcreasing operation it is of course necessary that the web T remainstationary. That portion of the web which is located between thecreasing dies 1| and 86 and therebeyond is permitted to. remainstationary by effecting separation of the feed rollers 66 and 61 as anincident to the descent of the crosshead 16. For this purpose there isprovided at opposite ends of the roller 66, arms such as indicated at 8|which are pivoted intermediate their ends as shown at 82. One end ateach of said levers 8| extends beneath a portion of the shaft of theroller 66 and the other end of each lever 8| is adapted to be engaged byan adjustable member in the form of a screw 83 which is carried by thecrosshead 16. It will be apparent that when the cross head 16 islowered, the screws 88 may be caused to engage the underlying endportions of the levers 8| so as to rock the same and thereby effectupward adjustment of the roller 66 relative to the driven roller 61. Inthis manner driving contact between the web T and the driven roller 61will be disengaged. The feed rollers 58 and 58 continue, however, toadvance the web T. The'upwardly humped guide member 16 serves to directthe web into an upwardly directed loop intermediate the feed rollers 58and 58 and the creasing dies 1| and 86 during such time as the latterare in cooperative relation. Upon upward or return movement of thecrosshead 16, the levers 8| are of course released and the feed roller66 is permitted to restore driving engagement between the web T and thedriven roller 61. As shown in the drawings, the ratios of the pitchdiameters of the sprockets by means of which the roller 61 is driven, issuch that said roller 61 is driven at an accelerated speed so as toenable the feed rollers 66 and 61 to take up the slack in the web T.

The crosshead 16 is reciprocated vertically by means of links 82-82(Figure 6) which are connected at their upper ends to the crosshead 16and at their lower ends to crank pins 8383 carried by the continuouslydriven shaft 6|.

The drive of the shaft 6| is through the agency of a disengageableclutch arrangement which comprises a collar 84, is keyed to the shaft6|, a transversely slidable clutch dog 85 carried by the collar 84, anda clutch part 86 formed integrally or rigidly connected to the sprocket81 which is rotatable on the shaft 6| The sprocket 81 is connected bymeans of a chain and another sprocket to the driven shaft 62. The clutchdog 85 is normally urged by a spring 88 into driving engagement with thedriven clutch part 86 but it is adapted to be disengaged therefrom bymeans of a clutch operating member 88" which is carried'by an arm I66.The arm I66 is pivoted as shown at 6| to a conveniently located

